Process for preparing overbased calcium sulfonates
US4879053A · kind A · utility
13Cited by
4References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 11, 1988 |
| Grant date | Nov 7, 1989 |
| Priority date | — |
| Expiry date | Jul 11, 2008 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC10M159/24
- WIPO fieldBiotechnology
- WIPO sectorChemistry
Abstract
In the preparation of an overbased calcium sulfonate from a chloride free calcium sulfonate and calcium oxide, it has been found that 0.4 to 0.9 wt % calcium chloride improves the overbasing reaction rate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.